title: Inhibition of human T-cell leukemia virus type 1 replication by antisense env oligodeoxynucleotide.
abstract: Human T-cell leukemia virus type 1 (HTLV-1) infection is associated with adult T-cell leukemia and HTLV-associated myelopathy/tropical spastic paraparesis. Inhibition of HTLV-1 transmission is important to prevent the above HTLV-1-associated diseases. We used the antisense oligodeoxynucleotides (oligos) complementary to the first splice junction, rex responsive site, gag, env, tax, rex, and p21 and evaluated the effects on the syncytium formation between HTLV-1 producing human T-cell line, C9/PL cells, and HTLV-1-uninfected human glioma cell line, U251-MG cells. The syncytium formation was significantly inhibited the virion production assayed by antisense oligos to env, tax, gag, p21, and rex, with antisense oligo to env being the most inhibitory. Antisense oligos to env and tax also inhibited reverse transcriptase activity. Antisense oligo to env may have a potential as a preventive measure of HTLV-1 replication and transmission in vivo.
authors.affiliation: Department of Biochemistry and Molecular Oncology, University of Tsukuba, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Maeda
authors.forename: T
authors.initials: T
authors.lastname: Kawamura
authors.forename: H
authors.initials: H
authors.lastname: Hoshino
authors.forename: N
authors.initials: N
authors.lastname: Yamada
authors.forename: J
authors.initials: J
authors.lastname: Blackard
authors.forename: S
authors.initials: S
authors.lastname: Kushida
authors.forename: N
authors.initials: N
authors.lastname: Miyano-Kurosaki
authors.forename: N
authors.initials: N
authors.lastname: Yamamoto
authors.forename: K
authors.initials: K
authors.lastname: Makino
authors.forename: T
authors.initials: T
authors.lastname: Yokota
authors.forename: K
authors.initials: K
authors.lastname: Uchida
authors.forename: M
authors.initials: M
authors.lastname: Miwa
mesh_terms: D001483:Base Sequence; D002460:Cell Line; D003588:Cytopathogenic Effect, Viral / Q000187:drug effects; D015752:Genes, env; D015750:Genes, gag; D016355:Genes, pX; D015490:HTLV-I Infections / Q000188:drug therapy / Q000635:transmission / Q000821:virology; D015368:Human T-lymphotropic virus 1 / Q000187:drug effects* / Q000235:genetics / Q000502:physiology*; D006801:Humans; D016376:Oligonucleotides, Antisense / Q000235:genetics / Q000494:pharmacology*; D014779:Virus Replication / Q000187:drug effects*
chemical_list: D016376:Oligonucleotides, Antisense